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Jan. 10, 1928. 1,655,882

A. c. \IARNUM ET AL THREAD CLAMPING MECHANISM FOR LOOMS Filed May a.1926 2 sheets-sheet 1 1111 111/111, e- 'IIIIIIIIIII IIII'IIIII ,ATi/aGTWr-num Dame-s .Zwvze s1- Fahiaal;

Jan. 10, 1928. 1,655,882

7 A. c. VARNUM ET AL THREAD CLAMPING MECHANISM FOR LOOMS Filed May 6.1926 2 Sheets-Sheet 2 'IIIII/l.

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Aid-THUR G. VARN'UM .tll llll JAIVIEQ THREAD- GLAIMZFIINGMIElCllF-lldltlfilld LFQIEt 1001015 Application :tilorl May 6, 1926.aerial No. 107,207.

This invention relates to a threadclam 3- ing; mechanism for looms andconstitutes improvements over the device shown in our Patent No.lgttitlfltll), patented January 8, 192%. The principal object of thisinvention is to provide a self-aligning construc tion for a threadclamping device of the nature set forth in said patent so as to providetor the automatic mljustment ot the roller with respect to the thread orother surface against which it comes into contact; and also to providefor applying the invention to other types of thread clamping mechanismthan the one shown in said patent.

Reference is to be had to the accompany ingr drawings in which l ig. 1is a transverse sectional. view of a. part ot a loom showing one ay inwhich the present improvements can be applied thereto; a

2 is a view in side elevation on onlarged scale of the threadclan'ipinp; mechanism by itself shown inopen position;

Fig. is a plan of the parts shown in Fig. 2;

l igg. 4t is a view similar to Fig. 2 showing the opposite or cuttingposition of the parts' 5 is an enlarged sectional view of one term otthe seltaligning roller;

b ip; ii is a. view similar to liig. 1 showing the application of theinvention to a differout type of automatic filling replenishing;

looms;

r. l scale ol the term in Fig. 6; Fig.1; 8 is a similar view showing thepart in a cutting position;

Fig. 9 is a bottom plan of the shine; and

10 is a sectional view showing one :torm of seltalig'ninp; roller.

lleterring :lirst to Figs. 1 to 5, we have shown the invention asapplied to a loom having the usual. lay 11 carrying the shuttle hon 12oscillated in the usual manner. The magazine 13 is shown. asco-operating with the wei't replenishing mechanism operated by a reel;shaft 14L The details oi this mechanism need not be described but ashuttle teeler member 15 is pivotallv mounted at lo and adapted to bemaintained normally in operative position with respect to the lay bymeans of a spring 17. This spring acts through an arm 18 constitutinu apart of the :t'eeler member 15. A level- 19 lined on the rock shaft 14is arranged to swing the itecler member 15 in the usual manner.

The upper end of the feeler 15 is provided with a Vshaped notch 20 toreceive the filling thread when the feeler is moved into operativeposition with respect to the shuttle box. A fixed blade 21 is secured tothe i'eeler 15 at the lower edge of the notch and a pivoted cuttingblade 22 is mounted. to swing; on a stud 23 mounted on the feelermember. The blade 22 is provided with heel portion 24- adapted to beengaged by the lay in the usual. manner. This swings the blade 22 topart the thread between the cooperating; edges of the blades 21 and 22.The blade can be opened by means of its pin 25 as is well understood inthis art. These parts of the loom areold and well. known and describedin our above mentioned patent.

A plate 28 is held stationary by a fork 26 and pin 27, the heel portion24: having a hole 27 :tor receiving}; the pin 27 and allowing; the blade22 to swing. The opposite edges of the hole constitute limiting stops.

The heel portion 24; has an offset 31. and having in said. offset aroller 32. This roller as shown in 5 is of a hollow cylindrical ilornimounted on a convex shaft 33 which is held at its ends in two openingsin the otl'set 3ft. lit can be put in from one end and when the rolleron it the roller will be free to swing slightly on account of irregwlarities in the position of the thread. or other parts. This rollerco-operates with the stationary plate 2% fixed on the stud 23 and heldin stationary position by the pin 27. A spring 29 under the head of thestud 23 holds this plate and all the parts yieldingly together,

In operation, the parts being open as shown in Fig. 2,.the thread ispassed through the notch 20 and over a horizontal projection on the endof the plate 28. The move ment of the pin upwardly by the mechanism ofthe loom as described in said patent results in swinging the blade 22,cutting the described and it will be understood that this isthe-application of this invention to a different type of loom. In thiscase, the shuttle feeler member 35 operates in a well known way and hasa notch similar to the notch 20. It also has a stationary blade 41spaced from the notch40 and a stationary plate 36 provided with anoffset and roller 32 like the roller above described but mounted on abarrel-shaped support 51 so as to be capable of yielding as in the othercase. Between the fixedblade island the roller is a swingingblade42'cooperating with both. A spring 39 holds the parts in contact.Here the threadis cut between the stationary blade -Ill and swingingblade 42 as in the other case and the thread is held between the roller32 and the other sideof the oscillating blade as above described.

This provides an automatic filling replenishing loom with means forclamping the thread comprising a self-aligning roller on a' pin orbushing so that the roller surface will adjust itself to the blade,plate or other flatsurfaee with which it comes in contact.

Although we have illustrated and described only two forms of theinvention we are aware of the fact that other modifica- 11 tions can bemade therein by any person skilled in the art to adapt it to other loomsWithout'departing from the scope of the invention' as expressed in theclaims.

pair of blades adapted to have a relative movement, and a surface ofrevolution movable with one of them as a whole and mounted to tilt onits axis to accommodate itself to any irregularities.

2. In an automatic filling replei'iishing loom, the combination with athread parler. of a pair of blades for cutting the thread and tworelatively movable members for holding the end of the cut thread. spacedfrom the blades and comprising a surface of revolution for holding thethread between it and the other member for holding the end. said surfaceof revolution being mounted to tilt freely, for the purpose described.

3. In an automatic filling replenishing loom, the combination with athread parter. a blade fixed with respect thereto and spaced therefrom.a tilting member having a blade cooperating with the first named bladesto cut the thread, and a roller on a fixed axis for engaging with thespaced blade to hold the cut end of the thread, said roller beingcapable of tilting on a longitudinal axis to accommodate irregularitiesin the thread.

In testimony whereof we. have hereunto afiixed our signatures.

ARTHUR C. VARNUW. JAMES ERNEST BIRDSALL.

